{(4,6)(8,6)} Has Two Pairs With The Same Second Coordinate. Does It Mean That A Is Not Function? Why?

{(4,6)(8,6)} has two pairs with the same second coordinate. Does it mean that A is not Function? Why?

 

Answer:

The given set of pairs {(4,6)(8,6)} have same second element of "6", while the first elements 4 and 8 are not the same. Therefore it is a function, a many-to-one relation.

Step-by-step explanation:

If the set of coordinates or ordered pairs have the same first elements, it is not a function.  A one-to-many relation is not a function.

If the set of coordinates or ordered pairs have the same second elements, it is a function. A many-to-one relation is a function.


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